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Finding the Fourth Proportional to 70,794, 97,705.44 and 45,638.64

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Solution

The fourth proportional to 70,794, 97,705.44 and 45,638.64 is: 62,987.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,794 : 97,705.44 = 45,638.64 : x
  2. Step 2: Convert to fraction form
    70,794/97,705.44 = 45,638.64/x
  3. Step 3: Cross multiply
    70,794x = 97,705.44 × 45,638.64
  4. Step 4: Simplify right side
    70,794x = 4,459,143,402.20
  5. Step 5: Solve for x
    x = 4,459,143,402.20/70,794
  6. Step 6: Final answer
    x = 62,987.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.